All three mind machines are capable of guiding you to targeted states in delta, theta, alpha, beta and high-beta brainwave frequencies. What you can do with your mind machine depends upon your own personal preferences. Do you want to venture deeper into theta meditation, improve your athletic or academic competitive skills or expand your ability to concentrate and focus? Being aware of how you are feeling mentality, emotionally and physically while you are experiencing a mind machine program should enable you to concentrate on those feelings and focus on the state you wish to be in at will. All it takes is practice after reading “Mind States 2: An Introduction to Light & Sound Mind Machines” by Michael Landgraf (which is a free ebook when purchasing a light and sound mind machine from Mindmachines.com).